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  1. 122 新領域創成科学研究科
  2. 38 環境学研究系 サステイナビリティ学教育プログラム
  3. 1223825 修士論文(サスティナビリティ学)
  1. 0 資料タイプ別
  2. 20 学位論文
  3. 025 修士論文

Sustainability of Agriculture Land Use in Eastern Bhutan In Relation to Climatic, Topographic and Social Factors

http://hdl.handle.net/2261/50532
http://hdl.handle.net/2261/50532
3258c1cf-b2b5-477f-845c-42922cf2a762
名前 / ファイル ライセンス アクション
K-03085.pdf 本文(fulltext) (4.8 MB)
K-03085-a.pdf 要旨(summary) (31.2 kB)
Item type 学位論文 / Thesis or Dissertation(1)
公開日 2012-02-09
タイトル
タイトル Sustainability of Agriculture Land Use in Eastern Bhutan In Relation to Climatic, Topographic and Social Factors
言語
言語 eng
キーワード
主題Scheme Other
主題 Agriculture land use
キーワード
主題Scheme Other
主題 Eastern Bhutan
キーワード
主題Scheme Other
主題 Climate variables
キーワード
主題Scheme Other
主題 Food security
キーワード
主題Scheme Other
主題 Sustainability
資源タイプ
資源 http://purl.org/coar/resource_type/c_46ec
タイプ thesis
著者 Phuntsho, Loday

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WEKO 5998

Phuntsho, Loday

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著者別名
識別子Scheme WEKO
識別子 5999
姓名 フンソ, ロデ
著者所属
著者所属 東京大学大学院新領域創成科学研究科環境学研究系サステイナビリティ学教育プログラム
著者所属
著者所属 Graduate Program in Sustainability Science, Graduate School of Frontier Science, The University of Tokyo
Abstract
内容記述タイプ Abstract
内容記述 Agriculture provides livelihood to about 70% of the people in Bhutan. Therefore development of agriculture is a central policy of the nation. In recent years agriculture land in Bhutan and elsewhere has often been abandoned or changed to other forms. Worldwide it is recognized as a result of complex interactions among climatic, topographic and socio-economic factors although findings differ according to the place, scale and land use. Hence, this study examines the impact of these factors on three common types of agriculture land use in Eastern Bhutan: dry land, mixed land and wet land. Vector land use data for 1994 and 2005 were arranged into those with the same categories, and their change in area between the two periods was analyzed. It was observed that all the three types of agricultural land use had decreased; with mixed land fastest and wet land slowest. For detailed analyses, the land use data for 2005 were converted into raster data. Then climatological data (temperature, rainfall and the moisture index), topographic data (elevation, slope, aspect, and distance to river), soil data and social data (distance to town, distance to road and rural population) were extracted in raster. All these operations were conducted using ArcGIS 9.3.1, a GIS software package. Then a binary logistic regression was used to build a predictive model of the probability of land use occurrence in each sampled grid cell using the climatic, topographic, soil and social data as predictor variables. Finally to study the potential impact of climate change, the probability of agriculture land use in the year 2050 was predicted using the projected climate data. This study shows that agriculture land use is affected by the combination of climatic, topographic and social factors indicating the need for a holistic approach for its sustainability. The climate variables including temperature and rainfall play a greater role in determining land use, pointing to the vulnerability of agriculture to climate change. The three types of land use were affected differently: wet land was found to be the most sensitive to climate, while dry land the least. It was also observed that changes in temperature and rainfall tended to differ by locations. Thus understanding of both global and local physiographic conditions is useful for adaptation to future climatic change. The knowledge about land use and its controlling factors is essential for the sustainable use of land resources. Hence, this study has provided useful inputs to the policy makers and land managers in Bhutan.
書誌情報 発行日 2011-09-27
日本十進分類法
主題Scheme NDC
主題 611
学位名
学位名 修士(サステイナビリティ学)
学位
値 master
研究科・専攻
新領域創成科学研究科環境学研究系サステイナビリティ学教育プログラム
学位授与年月日
学位授与年月日 2011-09-27
学位記番号
修創域第4085号
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